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From: wsr@lmi-angel.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: how do I make a process release its terminal?
Message-ID: <118@lmi-angel.UUCP>
Date: Wed, 21-Jan-87 12:19:06 EST
Article-I.D.: lmi-ange.118
Posted: Wed Jan 21 12:19:06 1987
Date-Received: Sat, 24-Jan-87 09:44:18 EST
Reply-To: wsr@lmi-angel.UUCP (Wolfgang Rupprecht)
Distribution: world
Organization: LISP Machine, Inc (Cambridge Engineering HQ)
Lines: 22

In article <> paul@vixie.UUCP (Paul Vixie Esq) writes:
>I see that syslogd, inetd, cron, and the rest do NOT show 'co' as their
>control terminal; how do I make this happen for me?

try this: 

#include <sys/ioctl.h>

fromlimbo ()
{
    int     f;

    if ((f = open ("/dev/tty", 2)) >= 0)
    {
	ioctl (f, TIOCNOTTY, 0);
	close (f);
    }
    else
	perror ("open");
}
-- 
Wolfgang Rupprecht	{harvard|decvax!cca|mit-eddie}!lmi-angel!wsr